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RISMinimizing Under-Constraint in Folded Beams to Achieve Optimal Bearing Performance in Diaphragm Flexures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. Diaphragm flexures are widely used in various precision applications to generate guided motion along the out-of-plane directions and provide load bearing along the in-plane directions. The traditional Asymmetric ...
A New Class of Single-Degree-of-Freedom Compliant Mechanisms With Optimal Bearing Characteristics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. This paper introduces a new class of single-degree-of-freedom (DoF) compliant mechanisms that exhibit optimal bearing characteristics, defined by low stiffness in the out-of-plane motion direction, high stiffness ...
Numerical Study of Behavior of Anchor Plates in Clayey Soils
Publisher: American Society of Civil Engineers
Abstract: This paper presents numerical models and mathematical formulations to predict the pullout capacity of anchor plates with different inclination angles embedded in clay. The models were developed based on the failure mechanism ...
Nonminimum Phase Zeros of Multi-Degrees-of-Freedom Damped Flexible Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article investigates the nonminimum phase (NMP) zeros in the transfer function, between actuated load input and measured displacement output, of a multi-degrees-of-freedom (DoF) flexible system in the presence of ...
A Multi-Layer Parallelogram Flexure Architecture for Higher Out-of-Plane Load Bearing Stiffness
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Parallelogram flexure mechanism (PFM) is a common flexure module that is widely used as a building block in the design and manufacturing of flexure-based XY motion stages that provide in-plane degrees-of-freedom (DoFs). ...
Non-Minimum Phase Zeros in Multi-Degrees-of-Freedom Undamped Flexible Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. This article investigates nonminimum phase zeros in the transfer function, between actuated load input and measured position output, of multi-degrees-of-freedom (DoF) undamped flexible systems. The transfer ...
Influence of Tensile Strain at Failure on Flexural Properties of a Cementitiously Stabilized Subgrade Soil
Publisher: American Society of Civil Engineers
Improving the Step Response of Flexible Systems in the Presence of Real Nonminimum Phase Zeros
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It is well known that real nonminimum phase (RNMP) zeros impose a tradeoff between the settling time and undershoot in the step response of flexible systems. Existing methods to alleviate this tradeoff predominantly rely ...
Artificial Neural Network–Based Intelligent Compaction Analyzer for Real-Time Estimation of Subgrade Quality
Publisher: American Society of Civil Engineers
Abstract: The quality and long-term performance of asphalt pavement depends significantly on the stiffness of the underlying subgrade. The modification of virgin soil, with additives such as cement kiln dust (CKD) and lime and its ...
Effect of Synthetic Ettringite on the Hydration of Sulfoaluminate Cement-Based Grouting Materials
Publisher: ASCE
Abstract: Ultrafine ettringite (UE) can accelerate the hydration of sulfoaluminate cement-based grouting materials (SCGMs). However, the mechanism of UE on the hydration of SCGM is not clear. Many researchers believe that ultrafine ...